煤矿安全2012，Vol.43Issue(11)：77-80,4.
过断层巷道修复技术研究与实践
Research and Practice of Crossing Through Fault Roadway Repair Technology
陈晓坡 1刘建庄 1浑宝炬 1李学静2
作者信息
- 1. 河北联合大学矿业工程学院,河北唐山063009
- 2. 唐山天和科技开发有限公司,河北唐山063009
- 折叠
摘要
Abstract
In the light of the unfavorable situation that Donghuantuo coal mine-230 m auxiliary return air roadway crossing fault result in surrounding rock serious deformation and influence coal mine safety production,The passage deeply analyzes the surrounding rock deformation mechanism in this roadway.The results show that the surrounding rock fragmentation phenomenon is serious and water expansion and softening in this roadway,the surrounding rock have engineering soft rock and geological soft rock characteristics,surrounding rock of roadway in broken soft rock large deformation is main feature.the paper put forward the advance grouting and high density anchor combined support technology of roadway repairing.This scheme is demonstrated by using the numerical simulation method.Engineering test shows that top and bottom and two side's convergence deformation are below 210 mm after restoration of tunnel,convergence rate is less than 2 mm/d,and roadway reaches overall stability soon and surrounding rock deformation of roadway gets thoroughly control.关键词
断层/碎裂软岩/超前注浆/高密锚喷/联合支护Key words
fault/broken soft rock/advance grouting/high density anchor spray/combined supporting分类
矿业与冶金引用本文复制引用
陈晓坡,刘建庄,浑宝炬,李学静..过断层巷道修复技术研究与实践[J].煤矿安全,2012,43(11):77-80,4.
